CVE-2025-52557

Mail-0 Zero Session Hijacking Via Email

State: Published
Severity: 8.6 High
Published: Jun 21, 2025
Updated: Jun 23, 2025
Reserved: Jun 18, 2025

Description

Mail-0's Zero is an open-source email solution. In version 0.8 it's possible for an attacker to craft an email that executes javascript leading to session hijacking due to improper sanitization. This issue has been patched in version 0.81.

Scores

CVSS	Score	Vector	Source
4.0	8.6 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-1384 Improper Handling of Physical or Environmental Conditions

Affected Products

Product	Versions
ZeroMail-0	= 0.8Affected

References

https://github.com/Mail-0/Zero/security/advisories/GHSA-34gh-g567-hq85
https://github.com/Mail-0/Zero/pull/1386
https://github.com/Mail-0/Zero/commit/48d1df65b62c9c57897b72b241081f447140342f

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